[PATCH] Parameters added for coverage_compute_cfg_checksum

[Martin Liška]

Hello,
   I will need for my further patch more general usage of
coverage_compute_cfg_checksum function, so that I added new argument.

Is the patch OK?

Thank you,
Martin

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d759d4c..32ffc2e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2013-11-19  Martin Liska <marxin.li...@gmail.com>
+
+	* gcc/coverage.c (coverage_compute_cfg_checksum): Parameters introduced.
+	* gcc/profile.c (branch_prob): Argument added.
+
 2013-11-19  Jeff Law  <l...@redhat.com>
 
 	* tree-ssa-threadupdate.c: Include ssa-iterators.h
diff --git a/gcc/coverage.c b/gcc/coverage.c
index 3f4e334..f0bdc1c 100644
--- a/gcc/coverage.c
+++ b/gcc/coverage.c
@@ -581,12 +581,12 @@ coverage_compute_profile_id (struct cgraph_node *n)
    but the compiler won't detect the change and use the wrong profile data.  */
 
 unsigned
-coverage_compute_cfg_checksum (void)
+coverage_compute_cfg_checksum (struct function *fn)
 {
   basic_block bb;
-  unsigned chksum = n_basic_blocks_for_fn (cfun);
+  unsigned chksum = n_basic_blocks_for_fn (fn);
 
-  FOR_EACH_BB (bb)
+  FOR_EACH_BB_FN (bb, fn)
     {
       edge e;
       edge_iterator ei;
diff --git a/gcc/coverage.h b/gcc/coverage.h
index 342d73e..a467c6e 100644
--- a/gcc/coverage.h
+++ b/gcc/coverage.h
@@ -32,8 +32,8 @@ extern int coverage_begin_function (unsigned, unsigned);
 /* Complete the coverage information for the current function.  */
 extern void coverage_end_function (unsigned, unsigned);
 
-/* Compute the control flow checksum for the current function.  */
-extern unsigned coverage_compute_cfg_checksum (void);
+/* Compute the control flow checksum for the function given as argument.  */
+extern unsigned coverage_compute_cfg_checksum (struct function *);
 
 /* Compute the profile id of function N.  */
 extern unsigned coverage_compute_profile_id (struct cgraph_node *n);
diff --git a/gcc/profile.c b/gcc/profile.c
index 1f1c265..cc0f5a5 100644
--- a/gcc/profile.c
+++ b/gcc/profile.c
@@ -1197,7 +1197,7 @@ branch_prob (void)
      the checksum in only once place, since it depends on the shape
      of the control flow which can change during 
      various transformations.  */
-  cfg_checksum = coverage_compute_cfg_checksum ();
+  cfg_checksum = coverage_compute_cfg_checksum (cfun);
   lineno_checksum = coverage_compute_lineno_checksum ();
 
   /* Write the data from which gcov can reconstruct the basic block